Sacrificial agents for petroleum recovery processes
US4217958A · kind A · utility
10Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1978 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Nov 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a surfactant flooding process for recovering oil from a subterranean petroleum reservoir, surfactant loss by adsorption onto the mineral grains of the reservoir matrices is reduced by the addition to the surfactant solution of a sacrificial agent selected from the group consisting of polybasic carboxylic acids, their water soluble salts and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.